Centrifugal machine.



W. JGRGENSEN.

GENTRIFUGAL MAGHINE.

APPLICATION FILED NOV. 25, 1907.

--22,485. Patented: May 25, 1909,

A x IIWENTOR Arm/ Nib.

IINITEH STATE PATENT QEFFTQE,

WALTER JORGENSEN, OF STOOKHOLM, SWEDEN, ASSIGNOR TO AKTIEBOLAGET SEPARATOR, OF STOCKHOLM, SWEDEN.

CENTRIFUGAL MACHINE Specification of Letters Patent.

Patented May 25, 1909.

Application filed November 25, 1907. Serial No. 403,652.

To all whom it may concern:

Be it known that I, WALTER JoRGENsEN, a subject of the Emperor of Russia, and residing at Stockholm, Sweden, have invented certain new and useful Improvements in Centrifugal Machines; and

hereby declare the following to be a full,

clear, and exact description of the invention, such as will enable others skilled in the art to Which it appertains to make and use the same, reference being had to the accompanying drawings, and to letters of reference marked thereon, which form a part of this specification.

My invention has for its object an improved construction whereby the tin covers of centrifugal machines, when the machines are in operation, may be more firmly held in position and yet may be readily released when it is desired to remove the covers.

Speaking generally, I accomplish this result by means of what I denote a cover arm, which is 1pivotally connected so as to turn at a sing e point, and when moved in one direction will clamp the covers to the frame and when moved in another direction will release the clamping of the covers to the frame. These and the specific constructions by which I accomplish this result form the subject matter of this invention.

I will first describe the embodiment of my invention as illustrated in the accompanying drawings, and then point out the invention in the claim.

In the drawings: Figure 1 is a partial side View of a centrifugal machine with my improved clamping attachment in osition. Fig. 2 is a ortion of a similar View i lustrating a modified form of clam ing attachment. Fig. 3 is a portion of a simi ar view showing another modified form.

a is the frame of the separator; b, b, the tin covers. 0 is an orificed projection from the frame. Through the orifice in this projection a pin or rod dextends and projects beyond the ends of said projection. Said pin is held in fixed position by means of the nuts 7c working on a threaded portion of the rod or pin (1. The upper end of this rod or pin (1 is provided with an orifice m therethrough. The lower portion of this rod is Ido provided with a detent or socket n. The cover arm com rises the cover arm proper e e and vertica member f. As shown, the members 0 and f are formed in one piece, although being formed in one piece is not an essential of my invention. At the outer end of each of the members e is a lug 0, which is adapted to rest on the surface of the upper cover I). Projecting from the vertical memberf and secured thereto is the pin h which is adapted to enter the orifice m in the pin or rod d.

g is a screw having an operating handle 1). This screw passes through a threaded orifice in the vertical member f and its outer end rests in the detent n in the lower portion of the pin or rod d. In operation, when the horizontal member is placed in position and the rod it passed through the hole m in the pin at so as to abut against the upper wall of the orifice and the end of the screw g entered into the detent n, if the screw be turned in one direction, the arm f will swing upon the point of contact between the rod h and the rod (1 as a center, forcing the horizontal arm 6 downward and causing the lugs o to clamp the covers against the frame. hen the screw is moved in the opposite direction, the clamping is released. If it is desired to remove the cover arm entirely, the screw 9 is released entirely, and the pin it withdrawn from the orifice in the pin d, when the arm may be bodily moved away.

I can, if desired, use the construction shown in Fig. 2. In this construction, the part (1, corresponding to the pin h, is provided with screw threads, while the part 1, corresponding in position to the screw g in Fig. 1, is rigidly connected to the arm f. The only difference in this construction over that previously described is that the fulcrum or pivot point is changed from the upper portion of the pin to the lower portion of the pin. Instead of using the screw g, an eccentric or cam 3 may, as shown in Fig. 3, be used for the same purpose.

Having now fully described my invention,

what I claim and desire to protect by Letters Patent is In centrifugal machines, with the frame of the machine,

the combination of a cover arm having a vertical member, a fixed pin connected to the frame of the machine, a pin projecting from' the vertical member and, abutting against and turning on the fixed pin, and a screw movably connected with i said Vertical member, abutting against an- 7 other part of said pin.

In testimony, that I claim the foregoing as my invention, I have signed my name in presence of. two subscribing witnesses;

WALTER JORGENSEN.

Witnesses:

CAR FRIBERG,

HARRY ALBILEN. 

